Home / 835,386.80-1,253,080.20-204,292.40

Finding the Fourth Proportional to 835,386.80, 1,253,080.20 and 204,292.40

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Solution

The fourth proportional to 835,386.80, 1,253,080.20 and 204,292.40 is: 306,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,386.80 : 1,253,080.20 = 204,292.40 : x
  2. Step 2: Convert to fraction form
    835,386.80/1,253,080.20 = 204,292.40/x
  3. Step 3: Cross multiply
    835,386.80x = 1,253,080.20 × 204,292.40
  4. Step 4: Simplify right side
    835,386.80x = 255,994,761,450.48
  5. Step 5: Solve for x
    x = 255,994,761,450.48/835,386.80
  6. Step 6: Final answer
    x = 306,438.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.